Handling of null values by Apache SOAP

["Porter, Nigel" <NP...@ndsuk.com>]

Hi,

I'm having problems integrating an Apache SOAP client with a number of
SOAP-enabled application servers. The problem is the way Apache SOAP appears
to handle NULL values, in that it attaches the xsi:null="true" attribute to
the appropriate element. 

I have looked at http://www.w3.org/TR/SOAP/ under section "5.1 Rules for
Encoding Types in XML". The ninth point is "A NULL value or a default value
MAY be represented by omission of the accessor element. A NULL value MAY
also be indicated by an accessor element containing the attribute xsi:null
with value '1' or possibly other application-dependent attributes and
values".

So the SOAP 1.1 specification appears to state that null values should be
represented by the xsi:null="1" attribute, but Apache SOAP represents this
by xsi:null="true".  This is causing problems with my application server
which doesn't recognise the values sent by Apache as actually being null.

Regards,

Nigel